TWI616739B - Portable device with temperature sensing - Google Patents

Abstract

The invention provides a handheld device, which has a casing and a processor disposed in the casing. The handheld device includes a camera and a temperature sensing element with an adjustable field of view. The camera is configured to generate an image of an object and to allow a user to frame the image at a portion of the object in order to determine the temperature of the framed portion. The temperature sensing element includes a plurality of temperature sensors, and the processor is configured to select a plurality of sensors among the plurality of sensors to generate a temperature smaller than or equal to the photo frame in the image. Field of View (FOV) of the temperature sensing element. The selected sensors are activated to generate a signal corresponding to the temperature of the object in the FOV, and the processor is configured to determine the sensed based on the sensor signals. temperature.

Description

Portable device with temperature sensing

The present disclosure is generally related to portable devices, such as portable phones or tablets, and more specifically, portable devices incorporating touchless temperature sensing.

References and Priority Claims in Related Applications

This application is a new patent application filed on March 15, 2013 and is a co-pending U.S. Provisional Application No. 61 / 789,661 and claims its priority. The disclosure of this application is hereby incorporated by reference in its entirety. .

Portable electronic devices such as cellular phones are ubiquitous in many communities. The increased popularity of portable electronic devices is due, at least in part, to the lower cost of these devices. In many cases, such as smart phones and tablets, the popularity of these devices can be further attributed to the increasing capabilities of these devices. For example, phones often include cameras, GPS receivers, inertial sensors, and certain applications that have very little to do with communication systems.

Many of these features only provide entertainment value; however, some are more useful. For example, when incorporated into a GPS receiver in conjunction with a web browser application, individuals can get directions to a location of interest almost immediately.

Although a variety of applications and functions are already available on mobile devices; Hope for additional capabilities. For example, a mobile device can be used to obtain weather information, which includes near real-time radar information for the user's area. Therefore, the user can judge that a front is approaching, judge that it is about to rain, and judge that the temperature will drop below the freezing point. The actual temperature near the user can also be obtained. However, even with all this information, users are still not sure whether the apparently slippery road surface is only wet or covered by so-called "black ice" because when the air temperature is above freezing, the road surface may Below freezing point.

There is a need in the art for a system that can be used to determine the temperature of an object almost anytime, anywhere.

This disclosure discusses handheld devices, such as cellular phones, smart phones, or tablet computers, which have a housing and a processor disposed within the housing, and a camera and a camera with an adjustable field of view. Temperature sensing element. The camera is configured to generate an image of an object and to allow a user to frame the image at a portion of the object in order to determine the temperature of the framed portion. The temperature sensing element includes a plurality of temperature sensors, and the processor is configured to select a plurality of sensors among the plurality of sensors to generate a temperature smaller than or equal to the photo frame in the image. Field of View (FOV) of the temperature sensing element. The selected sensors are activated to generate a signal corresponding to the temperature of the object in the FOV, and the processor is configured to determine the sensed based on the sensor signals. temperature. The device may include a sensible output, such as a visual display of the temperature value of the area of the object in the FOV.

Example 1. A handheld device having a housing and a processor disposed in the housing, and including: a port defined in the housing; and a field of view (FOV) A temperature sensing element disposed in the port and operable to generate one or more signals in response to the temperature of an object in the FOV; a senseable output; and Software that is executed and is operable to convert the one or more signals from the temperature-sensing element into signals indicating the sensed temperature on the senseable output.

Example 2. The handheld device according to Example 1, wherein the temperature sensing element includes a plurality of sensors configured to sense long-wavelength infrared radiation (LWIR).

Example 3. The handheld device according to Example 2, wherein the plurality of sensors are bolometer sensors configured to provide an electrical signal in response to a temperature of the object.

Example 4. The handheld device according to Example 3, wherein each bolometer sensor includes: a substrate; a reflective surface disposed on the substrate; and a metal layer formed of a metal Formed to be configured to change resistance in response to a temperature change, the metal layer supported on the substrate may be deviated from the reflective surface to receive LWIR reflected from the reflective surface.

Example 5. The hand-held device according to Example 4, wherein the metal layer is offset by a height of 1/4 of the wavelength of the LWIR.

Example 6. The handheld device according to Example 2, wherein the temperature sensing element further includes an aperture defined at the port, and the plurality of sensors are supported on the device away from the aperture, wherein, the The plurality of sensors are arranged to define a selectable field of view (FOV) via the aperture based on the operation of a plurality of selected sensors of the plurality of sensors.

Example 7. The handheld device according to Example 6, wherein the software is adapted to select a plurality of sensors of the plurality of sensors so as to provide an option for the temperature sensing element. Fixed FOV.

Example 8. The hand-held device according to example 7, wherein the hand-held device further comprises: a camera adjacent to the temperature-sensing element for generating a temperature measured by all of the temperature sensors An image of an object in the defined FOV; the soft system is executed by the processor to manipulate the image to define a frame around a part of the object whose temperature is to be sensed; and the software is further developed by the software The method is executed to select a plurality of temperature sensors of the plurality of temperature sensors so as to generate a FOV less than or equal to the photo frame.

Example 9. The handheld device according to Example 1, wherein the senseable output is a display screen, and the software executed by the software generates a temperature indicator for display on the display screen.

Example 10. The handheld device according to Example 1, wherein the device is a cellular phone, a smart phone, or a tablet computer.

Example 11. A method for sensing the temperature of an object by using a handheld device, comprising: aiming a camera in the handheld device at the object; using the camera to generate an image of a region of the object; a desired region of the object Mount the frame to obtain the temperature and generate a frame corresponding to the framed area; select the field of view of a temperature sensing element in the handheld device that is less than or equal to the frame; activate the temperature sensing element to Sensing a temperature in the field of view; and providing a senseable output via the handheld device, indicating the sensed temperature in the field of view.

Example 12. The method according to Example 11, wherein: the temperature sensing element includes a plurality of temperature sensors; and the step of selecting a field of view includes selecting the plurality of sensors in a manner less than all of the plurality of sensors. Multiple sensors in the sensor to define the field of view; and the activation temperature The step of measuring the sensing element includes activating only the selected sensors of the plurality of sensors.

100‧‧‧ portable device

102‧‧‧Shell

104‧‧‧upper shell

106‧‧‧Lower shell section

108‧‧‧ Internal display

110‧‧‧outer display

112‧‧‧ Thermal sensor port

114‧‧‧ Camera Port

116‧‧‧lighting port

118‧‧‧Keyboard

120‧‧‧Microphone port

122‧‧‧Data Port

124‧‧‧Charging port

130‧‧‧Control circuit

132‧‧‧Processor

134‧‧‧Memory

136‧‧‧ Internal Power

140‧‧‧Thermal sensor assembly

142‧‧‧ Charge Coupled Device (CCD)

144‧‧‧illumination light

150‧‧‧ substrate

152‧‧‧Array

154 ₁ ‧‧‧ thermal sensor

154 ₂ ‧‧‧ thermal sensor

154 ₃ ‧‧‧ thermal sensor

154 ₄ ‧‧‧ thermal sensor

154 ₅ ‧‧‧ thermal sensor

156‧‧‧ Chamber

158‧‧‧ cover

160‧‧‧Gasket

162‧‧‧metal film

164‧‧‧outer surface

166‧‧‧Aperture

170‧‧‧Program instructions

180‧‧‧ metal layer

182‧‧‧ metal pillar

184‧‧‧face mirror

190‧‧‧Flow chart or process

192‧‧‧step box

194‧‧‧step box

196‧‧‧step box

198‧‧‧step box

199‧‧‧Shadow photo frame

200‧‧‧ step box

202‧‧‧step box

204‧‧‧step box

206‧‧‧step box

208‧‧‧step box

209‧‧‧Temperature reading

FIG. 1 is a perspective view of a portable device that can incorporate the temperature sensing features described herein.

FIG. 2 is a block diagram of the electronic device of the portable device shown in FIG. 1.

FIG. 3 is a side cross-sectional view of a thermal sensor assembly according to the present disclosure.

FIG. 4 is an enlarged side view of a sensor element of the thermal sensor assembly shown in FIG. 3.

The relationship between the spectral response and the transmittance with the radiation wavelength as an integer is shown in FIG. 5.

The SEM photograph and schematic diagram of the thermal sensor assembly of FIG. 4 produced according to one of the manufacturing methods shown in FIG. 6 are shown.

FIG. 7 is a characteristic diagram and performance attributes of a thermal sensor assembly according to the features of the present disclosure.

FIG. 8 is a flowchart of software executed by a processor of the device depicted in FIGS. 1 to 2 to implement the temperature sensing function described herein.

The image shown in Figure 9 is a representative image of the temperature of a cup of coffee using the thermal sensing features described herein.

FIG. 10 is a functional block diagram of steps in the operation of the thermal sensing feature disclosed herein.

The system shown in FIG. 11 is an alternative to a larger thermal sensor for a portable device.

For the purpose of promoting an understanding of the principles of the embodiments described herein, reference will now be made to the drawings and the description in the written description below. These references are not intended to limit the scope of the main content. This patent also covers any changes and amendments to the explained embodiments and further applications of the principles of the described embodiments that are generally available to those skilled in the relevant art of this document.

Referring to FIG. 1, the portable device shown in the figure is generally represented by 100, which may be a cellular phone shown in the figure. In this embodiment, the portable device 100 has a casing 102 including an upper casing portion 104 and a lower casing portion 106. An inner display 108 is located inside the upper housing portion 104, and an outer display 110 is located outside the upper housing portion 104. The lower casing portion 106 includes a keyboard 118, a microphone port 120, a data port 122, and a charging port 124. An outer side of the upper casing portion 104 further includes a camera port 114 and a lighting port 116, which are positioned to allow a user to point the ports at an object or scene. In one aspect of this disclosure, a thermal sensor port 112 is also incorporated in the upper housing portion 104 and can be positioned adjacent to the camera ports and lighting ports, so that users can Point the thermal sensor port 112 to an object.

It should be understood that the portable device of FIG. 1 is only an exemplary example of a portable device capable of implementing the thermal sensing features described herein. The portable device 100 may have other configurations, such as a “smart” phone configuration; or, it may be in the form of a portable tablet, PDA, or similar device. The displays 104, 108 on the special portable device can be modified, and the device can omit specific components of the phone 100, such as a keyboard, microphone, data port, etc. In a specific embodiment of the portable device described herein, the device retains a display, the camera port, and the thermal sensor port.

A control circuit 130 for the device 100 is depicted in FIG. 2, which is located in the housing 102 inside. The control circuit 130 includes a processor 132 and a memory 134, and the processor will communicate with the devices of the device. The control circuit 130 also includes an internal power source 136. The program instructions 170 are stored in the memory and executed by the processor to achieve various functions of the device. The processor 132 is further operatively connected to a thermal sensor assembly 140, a charge coupled device (CCD) 142, and an illumination light 144, and their physical locations are adjacent to the thermal sensor port, respectively. 112, the camera port 114, and the lighting port 116 and / or are disposed in the thermal sensor port 112, the camera port 114, and the lighting port 116, respectively. The program instructions 170 include commands. When executed by the processor 132, the commands allow the portable device 100 to obtain data for determining the temperature of an object in a field of view of the thermal sensor assembly 140. It is also used to process the data in order to produce a user-perceivable output, for example, on the displays 108, 110. The perceptible display may have other forms, such as an indicator light for a specific sensed temperature, or an audible signal, such as a temperature alarm or a non-verbal sound.

As shown in further detail in FIG. 3, one embodiment of the thermal sensor assembly 140 includes a substrate 150 and an array 152 composed of a plurality of thermal sensors 154 _1-5 . In some embodiments, the array 152 may be a single pixel, or may include more or less than the five sensors shown in the figure. In addition, although the sensors 154 _1-5 shown in the figure are on a straight line, a two-dimensional sensor array can also be provided, which has a plurality of rows of sensors 154 _1-5 . The array 152 is located in a cavity 156 defined by a cover 158. The cover 158 can be adhered to the substrate 150 by a sealed gasket 160. The cover can be in the form of a silicon wafer. A thin metal film 162 can be deposited on the outer surface 164 of the cover 158 to define an aperture 166, which is used to determine the field of view of the sensor assembly.

According to one aspect of this disclosure, the thermal sensors 154 _{1-5 are} each a sensor capable of detecting Long Wavelength Infrared Radiation (LWIR). In a specific embodiment, the sensors are bolometers, which are generally configured to be as shown in the detailed diagram of FIG. 4. The bolometer sensor 154 _i includes a thin-film resistive metal layer 180 having a resistance characteristic in response to a temperature change and a sufficient heat absorption characteristic. The metal layer 180 has a thickness on the order of nanometers and is effectively applied to an amorphous substrate by atomic layer deposition (ALD). For example, the metal layer may be a 5 nm thick platinum layer applied to an amorphous silicon substrate. Other metals with suitable resistance-temperature characteristics and heat absorption characteristics can also be used, such as vanadium oxide.

As shown in FIG. 4, the ALD metal layer 180 is supported on a damascene substrate (eg, the substrate 150) by a metal anchor 182. The pillars are sized to support the metal layer on a mirror 184. The metal layer is supported at a height of about a quarter (ie, λ / 4) of the sensed wavelength, where the wavelength λ is in the infrared range. LWIR radiation falls in a wavelength range of 8 to 14 μm, and the apparent peak of the spectral response and transmittance is about 10 μm, as shown in the relationship diagram of FIG. 5. Therefore, in one specific embodiment, the metal layer 180 is supported on the mirror at a height equal to a quarter of a wavelength of 10 μm, or at a height of 2.5 μm. The mirror 184 enhances the thermal energy or IR radiation absorption of the metal layer 180.

A scanning electron microscope image of a suitable bolometer structure for the sensor assembly is shown in FIG. 6. In this example, an aluminum reflector / mirror is sputtered on a thermally oxidized silicon wafer to a thickness of about 100 nm. A 3 μm sacrificial photoresist layer or other suitable sacrificial layer is provided to support a 5 nm thick platinum layer deposited by ALD. The area of the bolometer (ie, the sensor 154 _i ) array is 5 × 5 pixels or in a range of 30 × 30 μm ² per pixel. The use of platinum as the metal layer 180 can provide good temperature coefficient resistance and low electrical noise. The use of ALD allows for controlled nanometer thickness conformal deposition. If necessary, a hardening element can be added to achieve the purpose of structural control of the nano metal film. The graph of FIG. 7 lists the desired performance parameters that a bolometer sensor produced as described above can achieve.

Referring to FIG. 8, a flow chart or a process depicted in the figure is generally represented by 190, which proposes a method for determining the thermal sensor assembly 140 by executing a program instruction 170 according to the principle Exemplary way of data on the temperature of an object in the field of view. First, a user carrying the portable device 100 will put the portable device 100 in a temperature detection mode in an appropriate manner (block 192), for example, by typing on a keyboard or pressing an activation button. In embodiments configured for temperature detection only, the device may only need to be powered. In embodiments such as the portable device 100, the display 108 in some embodiments may be configured to display a menu, and the user may use the menu to activate the temperature detection mode.

Once the portable device 100 is placed in the temperature detection mode, the processor 132 may activate or supply power to the CCD camera 142 to enter a powered state (block 194). The CCD 142 responds and begins to detect external energy in any acceptable manner, such as light energy, and generates a signal indicative of the sensed energy. The processor 132 receives the generated signal and controls a display 108, 110 to depict the scene seen (or sensed) by the CCD 142 (block 196).

Using the drawn image as a guide, the user will frame the desired scene / object in the photo produced by the CCD (block 198). In some embodiments, mounting a frame on an object is achieved by zooming the display, so that the object fills the displays 108, 110. In other embodiments, an obscured photo frame overlaid on the viewed scene is manipulated to frame the object. An example is depicted in FIG. 9 where a user is watching a cup of hot coffee (object O) on the display 108 of the device 100 (which is a “smart” phone in this figure). The software 170 is operable to generate a mask frame 199 corresponding to the region R on the object O. When the user moves the device 100 relative to the object, the mask frame 199 also moves. When the object is mounted with a frame, for example, the processor will use an internal display to select the one consisting of the thermal sensors 154 _1-5 in the array 152 required to view the area of the mounted frame. A subset. By changing the number of active sensors or pixels (that is, each is a separate pixel), the field of view (FOV) of the thermal sensor assembly 140 is adjusted to match the object in the display. Effect of mosaic frame (box 200). More specifically, the software executed by the processor of the device is adapted to select a plurality of sensors among the sensors required to provide an FOV that is approximately equal to the frame around the object captured by the camera. Tester. Preferably, the FOV does not exceed the frame of the object, so that unrelated temperature signals do not affect the detected temperature of a desired portion of the object.

For example, each of the sensors 154 _1-5 has an image length Lb _i , so that the total substrate length or active substrate length (Lb) of the array 152 (FIG. 3) can be activated by selecting less than all Sensor. As depicted in FIG. 3, the aperture 166 is located at a distance (h) from the thermal sensors 154 _1-5 and has an opening dimension (diameter) defined as “A”. If only selected if the heat sensor _1543, then, the FOV is produced as the angle defined role substrate having a short length (Lb ₁₎ is θ _1. By selecting an additional thermal sensor 154 _x , for example, a subset of thermal sensors including thermal sensors 154 _1-5 , the FOV will be expanded to have a correspondingly longer active substrate length (Lb ₂ ) angle θ ₂ .

FOV (ignore diffraction) is approximately tab (A / 2) = (Lb / 2 + A / 2) / h. In one embodiment, "h" is about 200 to 500 microns, "A" is about 50 to 100 microns, and "Lb" can be adjusted between about 15 microns and 1000 microns. As a result, the value of "θ" is between 1 and 150 degrees, depending on the previously defined values. For 50 micron pore size dimension A, 300 micron h, and Lb between 20 and 200 micron, θ can be adjusted between 13 and 45 degrees. Therefore, the sensing area of the array 152 can be adjusted so that there is a smaller or larger detection area at a given distance. These sensors are preferably, but not necessarily, chosen to be symmetrical to the aperture 166 in order to provide a FOV symmetrical to the aperture. The software executed by the processor may be configured to select a sensor so as to provide a FOV that is less than or equal to a dimension of a photo frame generated by the camera and associated software instructions based on the object O. In this way, the temperature sensors only sense the temperature in a desired area of the object. The temperature data generated by these sensors will therefore not be contaminated by the temperature of the object outside the desired photo frame. For example, in the example depicted in FIG. 9, the user wishes to determine the temperature of the liquid in the cup. Therefore, the user creates a photo frame limited to the liquid, as depicted in the figure. If the FOV of the sensors is large enough to contain the cup itself, the necessarily colder temperature of the cup will cause the device to register the temperature of the liquid below the true temperature.

Once the object is framed and the thermal sensor 154 _1-5 subset is selected, thermal data acquisition (block 202) will be initiated, either automatically or by the operator pressing a key on the keyboard 118 . The processor 132 controls the sensor array 152 in response to generate a different signal from each of the selected thermal sensors 154 _1-5 (block 204).

The processor 132 then judges the object based on the generated signals. The temperature of the body (block 206) and controls a display 108, 110 to depict temperature data associated with the determined temperature (block 208). In some embodiments, the average temperature data is displayed on the display. The temperature value can be obtained by performing a simple arithmetic average of the values from each of the sensors, and if necessary, an appropriate conversion can be applied to convert the sensor signal value into a temperature value. Other methods or algorithms can also be applied to convert the signal generated by each sensor into a value representing the actual temperature of the object O.

Therefore, as depicted in FIG. 9, a temperature reading 209 can be displayed on the display 108 simultaneously with a picture of the object O produced by the camera CCD. The temperature reading corresponds to the temperature of the object in the shielding frame 199. It can be understood that when the user moves the device 100 and the sensed area R also moves with it, the temperature reading will change according to the real temperature of the new sensed area. Therefore, in the case of the coffee cup being viewed in FIG. 9, it can be expected that moving the “smart” phone so that the area R near the edge of the cup will show that the temperature changes from the temperature sensed in the middle of the cup.

The processor 132 that executes the thermal sensing software 170 discussed in the present invention is a high-speed microprocessor of the type found in most handheld devices. Therefore, when a user moves the device to focus on different areas in an object O When R is on, the steps shown in the flowchart of FIG. 8 can be performed very quickly and interactively. Understandably, the device 100 can thus be used as an interactive temperature scanner with a wide range of potential uses, for example, to detect the temperature of a hot beverage, as shown in the example of FIG. 9, so that the user will not burn him / her. Mouth; detecting heat sources in buildings that may indicate fire; or looking for hot spots in devices that may indicate potential device failure. Auto technicians, aviation technicians, or HVAC technicians can use the device 100 and temperature sensing features to detect exhaust temperature to help diagnose problems. The handheld thermal sensor function can also be used Determine the temperature of a child or patient to help diagnose a medical condition.

A block representation of the temperature sensing events described in the flowchart of FIG. 8 is provided in FIG. 10. The device 100 is pointed at an object O emitting LWIR radiation, such as a coffee cup as shown in the figure. The temperature sensor assembly 140 will absorb radiation, which will increase the temperature of the metal layer 180 of the selected sensors, which in turn will generate a high resistance in the sensor assembly. The processor 132 of the device senses this resistance change, for example, by a voltage change across the sensor assembly. An integrated ASIC can adjust the signal S received from the sensor assembly 180. The processor 132 (and in particular the software 170 executed by the processor) estimates the voltage change to determine the temperature T _{obj of} the object. This judgment can be made in several ways, for example, by using a temperature lookup table stored in the memory 134 as a function of voltage change or voltage magnitude; or by an algorithm implemented by software, which will detect The value of the signal (for example, the magnitude of the voltage) is converted into a temperature value.

In different embodiments, the sensor array in the thermal sensor assembly may take various forms. As shown in FIG. 3, the sensors may be located in a linear array. In other embodiments, the sensors may be in a rectangular, circular, or elliptical array, and the apertures 166 are appropriately modified.

The temperature sensing features described herein allow the portable device to be used in a wide range of applications. In a simple example, the portable phone 100 can be used to sense the temperature of a beverage to ensure that it is safe to drink. This temperature sensing feature can also be used to judge the body temperature of an infant or a patient, to judge the local temperature of a person's limbs as an indicator of blood circulation, or even to judge the temperature of a person's face to assess the state of emotion. The device 100 may be used to detect hot spots in a building (for example, by firefighters or other individuals) to determine whether there is a fire behind a closed door. Because the thermal sensor assembly 140 is operated using LWIR radiation, the device does not No visible light is required, which means that the device can be used equally in the dark or light. This attribute can be used in gambling methods, such as with interactive gambling devices or with active gambling, such as paintball. Implementing this temperature sensing feature in a portable device will open up possible applications according to the user's imagination.

In the embodiments described above, the temperature sensor assembly 140 is small and easily incorporated into a conventional portable or "smart" phone package. In other embodiments, a larger sensor may be incorporated into the device, such as the device shown in FIG. 11. The device shown in the figure is relatively large and in some cases has a larger detection range than the bolometer sensor described herein. The present invention contemplates that the same or similar software 170 may be implemented to sense the temperature of an object using any of the devices shown in FIG. 11. The present invention contemplates that the larger sensor can have a larger range, much like a thermal sensing binocular or camera.

The present disclosure discusses a portable temperature sensing system integrated into a portable device (eg, a handheld wireless telephone), wherein a thermal sensor assembly supported within the device housing includes a A bolometer-type thermal sensor array that is adapted to detect LWIR radiation emitted from an object. A processor and a memory in the device estimate the signal from the sensor assembly to determine the temperature of the object and provide an output to the device user. Software executed by the processor allows a user to adjust the field of view of the sensor assembly based on the object being detected.

As discussed above, the temperature sensing system can be integrated into an existing handheld device, such as a portable phone as shown in the embodiment shown in the figure, or it can be integrated into the temperature sensor Test-only device. The device is portable and preferably is handheld, so that the user can precisely point the device at an object to be sensed.

In the embodiment shown in the figure, the signal from the temperature sensor 154 _i is estimated by a software routine executed by the processor or microprocessor of the device 100. Alternatively, the signals from the temperature sensors may be processed by an analog circuit system configured to convert a voltage or current signal from the sensors into an operable to generate a The voltage or current of a temperature-sensable signal. In an example, the analog circuit system may be configured to generate a warning signal when the sensor signals exceed a preset value indicating an extremely high temperature which is very dangerous.

100‧‧‧ portable device

102‧‧‧Shell

104‧‧‧upper shell

106‧‧‧Lower shell section

108‧‧‧ Internal display

110‧‧‧outer display

112‧‧‧ Thermal sensor port

114‧‧‧ Camera Port

116‧‧‧lighting port

118‧‧‧Keyboard

120‧‧‧Microphone port

122‧‧‧Data Port

124‧‧‧Charging port

Claims (8)

A handheld device has a casing and a processor disposed in the casing, and includes: a port defined in the casing; and a temperature sensing element having a field of view (FOV). Disposed in the port and operable to generate one or more signals in response to the temperature of an object in the field of view; a sensible output; and software executed by the processor, which Operable to convert the one or more signals from the temperature sensing element into signals indicative of the sensed temperature on the senseable output, wherein the temperature sensing element includes a plurality of sensors, and The plurality of sensors are bolometer sensors, which are configured to detect long-wavelength infrared radiation (LWIR) and provide an electrical signal in response to the temperature of the object, and each bolometer sensor includes: A substrate; a reflective surface provided on the substrate; and a metal layer formed of a metal configured to change resistance in response to a change in temperature, the support being supported on the substrate Metal layer will deviate A reflective surface for receiving radiation reflected from the surface of the long-wavelength infrared light is reflected. The handheld device according to item 1 of the scope of patent application, wherein the metal layer is deviated by a height of 1/4 of the wavelength of the long-wavelength infrared radiation. The handheld device according to item 1 of the patent application, wherein the senseable output is a display screen, and the software executed by the processor generates a temperature indicator for display on the display screen. A handheld device has a casing and a processor disposed in the casing, and includes: a port defined in the casing; and a temperature sensing element having a field of view (FOV). Disposed in the port and operable to generate one or more signals in response to the temperature of an object in the field of view; a sensible output; and software executed by the processor, which Operable to convert the one or more signals from the temperature sensing element into a signal representing the sensed temperature on the senseable output, wherein the temperature sensing element further comprises a port defined in the port An aperture at which the plurality of sensors are supported on the device away from the aperture and wherein the plurality of sensors are arranged to operate with a plurality of selected sensors of the plurality of sensors Based on this aperture, a selectable field of view (FOV) is defined. The handheld device according to item 4 of the patent application, wherein the temperature sensing element includes a plurality of sensors configured to sense long-wavelength infrared radiation (LWIR). The handheld device according to item 4 of the patent application, wherein the software is adapted to select a plurality of sensors of the plurality of sensors so as to provide a selected field of view for the temperature sensing element. The handheld device according to item 6 of the patent application scope, wherein the handheld device further comprises: a camera adjacent to the temperature sensing element for generating a temperature sensor from all the temperature sensors in the plurality of temperature sensors An image of an object in a defined field of view; the soft system is executed by the processor to manipulate the image in order to define that the surrounding temperature is to be A frame of a part of the object sensed; and the software is further executed by the software to select a plurality of temperature sensors of the plurality of temperature sensors so as to generate a video smaller than or equal to the frame field. A handheld device has a casing and a processor disposed in the casing, and includes: a port defined in the casing; and a temperature sensing element having a field of view (FOV). Disposed in the port and operable to generate one or more signals in response to the temperature of an object in the field of view; a sensible output; and software executed by the processor, which Operable to convert the one or more signals from the temperature-sensing element into signals indicating the sensed temperature on the senseable output, wherein the device is a cellular phone, a smart phone, or It's a tablet.